Reduce video file size while maintaining quality
Drag & drop video file here
Supports MP4, MKV, AVI, MOV, WebM and more
Drag & drop your FLV file
Select quality level and target size
Get your smaller FLV file instantly
Flash Video
FLV was the dominant web video format during the Flash era. While Flash is now deprecated, FLV files still exist in many archives and legacy systems.
Common reasons to reduce FLV file size
Compress FLV videos to fit email attachment limits and messaging apps.
Reduce FLV file sizes by up to 80% while maintaining visual quality.
Optimize FLV for faster upload to YouTube, Vimeo, and social platforms.
Create lightweight FLV files that stream smoothly on mobile networks.
Your videos never leave your device. All compression happens locally in your browser.
Hardware-accelerated compression powered by WebCodecs and WebAssembly.
Compress MP4, MOV, AVI, MKV, WebM and more video formats.